Control corneal molding is a non-surgical way of correcting your nearsightedness and astigmatism.  During the procedure, a series of therapeutic gas permeable lenses are applied to the cornea while you are sleeping.  The therapeutic lens gently reshape the central cornea overnight, as a result, when you remo http ve the cornea, your vision will be restored to 20/20.  Orthokeratology is proven to be effective and safe,  it has been in practice for 40 years, it is not until the last decade that it gain its popularity.  Nowadays, with the advancement in lens design, computerized corneal analysis, computerize digital lathing, the new orthokeratology is more predictable, faster and safer than ever.  

How does the corneal reshaping lens work?

One of the common disorder of human eyes is nearsightedness (myopia).  In myopic eyes, light rays are refracted too much. As a result, the light rays converge to a point in front of the retina. Patients suffering from myopia will see blurred images at a distance.  In order for one to see images clearly again, one can either shorten the eyeball or change the light bending ability of one’s eyes so that light rays can be focused at the retina again,

The human cornea determine 70% of how light rays bend.  Therefore, if we can flattened the cornea and make the light rays bend to a point further back.  Myopic eyes will then focus properly.   The principle of corneal reshaping lens does exactly like what we described, it gently reshapes (flatten) the central  corneal epithelium and alters the bending of light rays.  As a result, light rays no longer focus in front of the retina, instead, it focus on the cornea again.

Because the corneal reshaping lenses only reshape the epithelium of the cornea, it does not alter the physiology nor the structural integrity of the cornea.  Therefore, the vision improvement last for 12 to 14 hours only.  If you did not wear the lenses to retain the shape, vision become blur again.

The only procedure to control the progression of nearsightedness.